The tricolour stripe acts in lieu of branding to mark designs out as the creation of Mr Thom Browne . Made in Italy, this chunky grey cable-knit wool beanie features the red, white and blue lines running parallel along the upturned hem, and also on a grosgrain tab you can use to hang it in storage. - - Multicoloured wool - 100% wool - Dry clean - Made in Italy

Cable-knitting was first introduced at the turn of the 19th century when sweaters were developed for fishermen and seafarers - the decorative weave is more insulating and resilient than plainer fabrics. Guaranteed to keep you warm, this chunky wool beanie by Thom Browne is accented with the brand's signature tricolour stripe. Team it with a navy scarf when the temperature drops. - - Midnight-blue, red and white wool - Grosgrain tab - 100% wool - Dry clean - Made in Italy

Winter may be the more sombre season, but that doesn't mean your sartorial standards should lapse. Thom Browne 's Fair Isle hat has been woven in Ireland from an insulating wool and mohair-blend and is topped with a plush bobble. Wear it the next time the polar vortex hits. - - Midnight-blue and white wool and mohair-blend - Ribbed trims, striped grosgrain tab - 70% wool, 30% mohair - Dry clean - Made in Ireland

EXCLUSIVE AT MR PORTER.COM. The tricolour grosgrain trim and four white stripes detailing this beanie mark it out instantly as a Thom Browne design. It is knitted from ultra-soft wool with a flexible ribbed construction and has a folded base that can be adjusted accordingly. - - Navy and white wool - Striped grosgrain tab - 100% wool - Dry clean - Made in Italy